Best as I can tell, Apple is 2 - 3 years ahead of everyone else.
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My singular and persistent disappointment remains iCloud. I still want seamless sync and handoff and backup and unlimited storage... That just works. That doesn't require me to do tech supp for my family members.
It's getting incrementally better, but isn't quite the whole enchilada yet.
No one has cracked the ubiquitous computing nut, so maybe it's just a hard problem.